400 ISL - Shift Indicator/ Tranny temp

I have recently changed RVs from a Cummins 350 ISC to a 400 ISL. I am missing the tranny shift indicator and temp gauges. What am i doing wrong or is there a program update to correct this issue?
Thanks
Alan

Allison uses different hardware. We can no longer physically connect to the Allison with the current hardware. If it was software we would have had that handled about three hours after the first transmission was shipped.